*{
    margin: 0px;
    padding: 0px;
    list-style: none;
    box-sizing: border-box;
}
 a{
    display:inline-block;
    text-decoration: none;
}
#top{
    width: 100%;
    height: 40px;
    background-color: rgb(51,51,51);
    text-align: center;
    line-height: 40px;
    color: #b0b0b0;
    font-size: 12px;
}
#top span{
    margin: 0 5px;
    float: left;
    color: #424242;
}
#top a {
    color: #b0b0b0;
    float: left;
}
#top  a:hover{
    color: #fff;
}
.down{
    position: relative;
    text-align: center;
}
#top .download{
    width: 110px;
    height: 130px;
    line-height: 1;
    background-color: rgb(255, 255, 255);
    z-index: 1;
    box-shadow: 0px 5px 10px gray;
    position: absolute;
    top:40px;
    left: -37px;
    display: none;
}
.download::after{
    content: '';
    width: 0;
    height: 0;
    border-width: 8px;
    border-style: solid;
    border-color: transparent transparent rgb(255, 255, 255) transparent;
    position: absolute;
    top: -16px;
    left: 45px;
}
#top .down:hover .download{
    display: block;
}
.download img{
    width: 90px;
    height: 90px;
    margin: 15px 10px 8px;
}
.div{
    width:1100px;
    /* height: 40px; */
    margin: 0 auto;
}
.top_r{
    width: 270px;
    height: 40px;
    float: right;
}
.top_r .gou{
    width: 110px;
    height: 40px;
    margin-left: 15px;
    padding-right: 10px;
    text-align:right;
    background-color: #424242 !important;
    position: relative;
}
.gou em{
    font-size: 20px;
}
.gou .g{
    width: 250px;
    height: 100px;
    font-size: 12px;
    text-align: center;
    background-color: #fff;
    box-shadow: 0px 5px 5px gray;
    line-height: 100px;
    position: absolute;
    top: 40px;
    right: 0px;
    z-index: 1;
    display: none;
}
#top .gou:hover .g{
    color: rgb(66, 66, 66);
    display: block;
}
.gou:hover{
    background-color: #fff !important;
    color: #ff6700 !important;
    
}
/* 头部结束 */

/* 导航开始 */
#nav{
    width: 1100px;
    height: 100px;
    margin: 0 auto;
    
}
.logo{
    float: left;
    width: 50px;
    height: 50px;
    line-height: 140px;
}
.logo img{
    width: 50px;
    height: 50px;
}
.nav_m{
    width: 730px;
    height: 100px;
    padding-left: 100px;
    float: left;
    /* position: relative; */
}
.nav_mid>li{
    padding: 0px 10px;
    height: 100px;
    float: left;
}
.nav_mid>li>a{
    font-size: 16px;
    margin-top: 40px;
    color: #333;
}
.nav_mid>li> a:hover{
    color: #ff6700;
}
.navm1{
    width: 100%;
    height: 200px;
    border-top: 1px solid gray;
    position: absolute;
    top: 140px;
    left: 0px;
    z-index: 2;
    display: none;
}
.nav_mid>li:hover .navm1{
    display: block;
}
.navm1 ul{
    width: 1100px;
    height: 200px;
    margin: 0 auto;
    padding-top: 30px;
    text-align: center;
    background-color: #fff;
}
.na li{
    width: 180px;
    height: 150px;
    border-right: 1px solid #f5f5f5;
    float: left;
}
.na p{
    color: rgb(27, 27, 27);
    font-size: 14px;
    margin:10px 0px 8px 0px;
    height: 10px;
}
.na .r{
    font-size: 12px;
    color: #ff6700;
}
.search{
    float: right;
    width: 296px;
    height: 50px;
    margin-top: 25px;
    border: 1px solid #e4e4e4;
    line-height: 45px;
    background: url(../mi-img/mi01.png) no-repeat 250px center;
}  
.txt{
    width: 240px;
    height: 50px;
    border: 0px;
    outline: none;
    padding-left: 6px;
    border-right: 1px solid #e4e4e4;
}
/* 底部开始 */
#bottom{
    width: 100%;
}
.botm{
    width: 1100px;
    height: 320px;
    background-color: #fff;
    margin: 0 auto;
}
.botm .botm_t{
    width: 1100px;
    height: 90px;
    border-bottom: 1px solid #e0e0e0;
}
.botm .botm_t li{
    width: calc(1096px/5);
    text-align: center;
    color: gray;
    margin-top: 30px;
    border-right: 1px solid #e0e0e0;
    cursor: pointer;
    float: left;
}
.botm .botm_t em{
    font-size: 25px;
}
.botm .botm_t li:nth-child(5){
    border: 0px;
}
.botm .botm_t li:hover{
    color: #ff6700;
}
.botm .botm_bl{
    width: 880px;
}
.botm .botm_bl dl{
    width: 145px;
    margin-top: 30px;
    float: left;
}
.botm .botm_bl dt{
    font-size: 14px;
    color: #333;
    margin-bottom: 20px;
}
.botm .botm_bl dd{
    font-size: 12px;
    color: gray;
    margin-bottom: 10px;
    cursor: pointer;
}
.botm .botm_bl dd:hover{
    color: #ff6700;
}
.botm .botm_br{
    width: 220px;
    height: 120px;
    border-left: 1px solid #e0e0e0;
    margin-top: 30px;
    text-align: center;
    float: right;
}
.botm .botm_br .p{
    font-size: 20px;
    color: #ff6700;
}
.botm .botm_br .b{
    width: 100px;
    height: 30px;
    line-height: 30px;
    margin-left: 58px;
    color: #ff6700;
    cursor: pointer;
    border: 1px solid #ff6700;
}
.botm .botm_br .b:hover{
    background-color: #ff6700;
    color: #fff;

}
.botm .botm_br p{
    font-size: 12px;
    margin: 5px 0px;
    color: gray;
}
.botm .botm_br p>i{
    font-size: 25px;
    color: rgb(73, 73, 73);
    cursor: pointer;
}
.botm .botm_br p>i:hover{
    color: #ff6700;
}
.last{
    width: 100%;
    height: 250px;
    border-top: 1px solid transparent;
    background-color: #fafafa;
    
}
.last .last-all{
    width: 1100px;
    margin: 30px auto 0;
    overflow: hidden;
}
.last_l{
    width: 56px;
    
    
}
.last .last_l img{
    width: 56px;
    margin-right: 15px;
    
}
.last .last_l{
    width: 60px;
    float: left;
}
.last .last_r{
    width: 1040px;
    float: left;
}
.last .last_r p,a{
    color: #757575;
    font-size: 12px;
}
.last .last_r span{
    color: #b0b0b0;
}
.last .last_r a:hover{
    color: #ff6700;
}
.last .pic img{
    width: 85px;
}
.last>p{
    width: 1100px;
    margin: 0 auto;
    text-align: center;
    margin-top: 40px;
    color: #c2c2c2;
    font:20px '楷体';
}
